var defaultNewProductTabId=0;
  var defaultFriendRecommendTabId=0;
  function changeHotProductTab(prefix, id) {
      for (var i = 1; i <= 5; i++) {
          if (i == 2) {
              document.getElementById(prefix + "1_tab" + i).className = prefix + "1_tab2";
              document.getElementById(prefix + "_content_" + i).style.display = "none";
          }
          else {
              document.getElementById(prefix + "_tab" + i).className = prefix + "_tab2";
              document.getElementById(prefix + "_content_" + i).style.display = "none";
          }
      }
      if (id == 2) {
          document.getElementById(prefix + "1_tab" + id).className = prefix + "1_tab1";
          document.getElementById(prefix + "_content_" + id).style.display = "";
      }
      else {
          document.getElementById(prefix + "_tab" + id).className = prefix + "_tab1";
          document.getElementById(prefix + "_content_" + id).style.display = "";
      }
  }
  function changeNewProductTab(id)
  {
  if(id!=defaultNewProductTabId)
  {
  document.getElementById("newproduct_tab_"+id).className="default_tab1";
  document.getElementById("newproduct_content_"+id).style.display="";
  document.getElementById("newproduct_tab_"+defaultNewProductTabId).className="default_tab2";
  document.getElementById("newproduct_content_"+defaultNewProductTabId).style.display="none";
  defaultNewProductTabId=id;
  }
  }
  function changeFriendRecommend(id)
  {
  if(id!=defaultFriendRecommendTabId)
  {
  document.getElementById("friendlyRecommend_tab_"+id).className="default_tab1";
  document.getElementById("friendlyRecommend_content_"+id).style.display="";
  document.getElementById("friendlyRecommend_tab_"+defaultFriendRecommendTabId).className="default_tab2";
  document.getElementById("friendlyRecommend_content_"+defaultFriendRecommendTabId).style.display="none";
  defaultFriendRecommendTabId=id;
  }
  }
  function changeLeftTopTab(id)
  {
  var oldId=id==1?2:1;
  document.getElementById("leftTopTab"+id).className="tag_bg3";
  document.getElementById("leftTopTab"+oldId).className="tag_bg3_";
  document.getElementById("leftTopContent_"+id).style.display="";
  document.getElementById("leftTopContent_"+oldId).style.display="none";
  }
  function changeCatLeftTopTab(id)
  {
  var oldId=id==1?2:1;
  document.getElementById("leftTopTab"+id).className="right_menu_";
  document.getElementById("leftTopTab"+oldId).className="left_menu_";
  document.getElementById("leftTopContent_"+id).style.display="";
  document.getElementById("leftTopContent_"+oldId).style.display="none";
  }